Construction Management

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A Study of Alternative Wall Making Materials Selection Using Ahp Method
(Addis Ababa University, 2022-06-01) Behailu Workneh Tolu; Denamo Addissie (PHD)
Material selection is a complex and delicate task determined by the vast number of building material options. Likewise, multiple factors are often considered by the architect or building designer when evaluating the various categories of building materials. As a result, these sets of factors or variables often present tradeoffs that further complicate the decision-making process. To ease the material-selection process, this study examines the relevant factors or variables needed to develop a systematic and efficient material-selection system. Through the analysis of frequency data and results of the study, it has identified the potential factors that will impact designers’ decisions in their choice of wall making alternative building materials, during the design-decision making process. The application of the criteria for the quantitative evaluation and selection of the best alternative building material, using the analytic hierarchy process model, are discussed. The developed decision support system assist designers to assess their consequences in terms of whether or not a material option is likely to be best chosen over the existing conditions. The study also investigates the existing situations in the application of alternative wall making building materials. It assesses the current materials which are being used as a wall making alternative building materials, the extent of usage and barriers to use these materials. Keywords: decision making process; factors or variables; selection criteria; alternative building materials; selection framework; analytical hierarchy process (AHP)
A Study of Alternative Wall Making Materials Selection Using Ahp Method
(Addis Ababa University, 2022-06-01) Behailu Workneh Tolu; Denamo Addissie (PhD)
Material selection is a complex and delicate task determined by the vast number of building material options. Likewise, multiple factors are often considered by the architect or building designer when evaluating the various categories of building materials. As a result, these sets of factors or variables often present tradeoffs that further complicate the decision-making process. To ease the material-selection process, this study examines the relevant factors or variables needed to develop a systematic and efficient material-selection system. Through the analysis of frequency data and results of the study, it has identified the potential factors that will impact designers’ decisions in their choice of wall making alternative building materials, during the design-decision making process. The application of the criteria for the quantitative evaluation and selection of the best alternative building material, using the analytic hierarchy process model, are discussed. The developed decision support system assist designers to assess their consequences in terms of whether or not a material option is likely to be best chosen over the existing conditions. The study also investigates the existing situations in the application of alternative wall making building materials. It assesses the current materials which are being used as a wall making alternative building materials, the extent of usage and barriers to use these materials. Keywords: decision making process; factors or variables; selection criteria; alternative building materials; selection framework; analytical hierarchy process (AHP)
A Study of Alternative Wall Making Materials Selection Using AHP Method
(Addis Ababa University, 2022-06-01) Behailu Workneh Tolu; Denamo Addissie, (PhD)
Material selection is a complex and delicate task determined by the vast number of building material options. Likewise, multiple factors are often considered by the architect or building designer when evaluating the various categories of building materials. As a result, these sets of factors or variables often present tradeoffs that further complicate the decision-making process. To ease the material-selection process, this study examines the relevant factors or variables needed to develop a systematic and efficient material-selection system. Through the analysis of frequency data and results of the study, it has identified the potential factors that will impact designers’ decisions in their choice of wall making alternative building materials, during the design-decision making process. The application of the criteria for the quantitative evaluation and selection of the best alternative building material, using the analytic hierarchy process model, are discussed. The developed decision support system assist designers to assess their consequences in terms of whether or not a material option is likely to be best chosen over the existing conditions. The study also investigates the existing situations in the application of alternative wall making building materials. It assesses the current materials which are being used as a wall making alternative building materials, the extent of usage and barriers to use these materials. Keywords: decision making process; factors or variables; selection criteria; alternative building materials; selection framework; analytical hierarchy process (AHP)
A study on Improving Price Adjustment Administration in Federal Road Projects
(Addis Ababa University, 2021-06-01) Simreteab Gebremedhin; Wubishet Jekale (PhD. Eng.)
The degree of price variations referring to each specific type of construction shall be measured by specific price indices, in order to achieve more accurate results. In Ethiopian Road Authority, Price Index is commonly used for price adjustment administration in the escalation of road construction costs. This study aims to improve price adjustment administration in federal road projects. The objectives of the study report in this thesis are assessing current price indices determination practice when original source cease to publish indices, assessing reliable sources to minimize ceasing of publishing indices and developing guideline for price adjustment administration system when supplier cease to exist and replaced by new source. This research covered, the studies on improving price adjustment administration in federal road projects. Moreover, price adjustment administration when suppliers cease to published price indices were analyzed by trend, T-tests and regression analysis techniques, to obtain models to predict the future values of the new sources of indices, which was a way enabling the prediction of the future indices of a price adjustment in federal road projects. Using a detailed literature review, a quantitative data collection approach, data was collected from Ethiopian Road Authority payment certificates, to see the trend of price adjustments of key construction cost inputs (cement, bitumen, fuel and steel), National Bank of Ethiopia’s website (currency exchange ETB to USD) and different local and international road construction material suppliers’ websites. In this thesis, some descriptive statistical methods have been used for the analysis of Three DB case study projects that are completed under RSDP IV. The projects are Chole magna, Dire Dawa- Dewelle and Pawi-Junction. The result is analysed using trend, T-test and regression analysis methods. The analysis resulted that, NOC should be used as a new source for Chole magna and Dire Dawa-Dewelle projects. Producer Price Index (PPI); Petroleum from Bureau of Labour Statistics (BLS) U.S should be used for Pawi Junction-Fendkia-Ayma project. Finally, based on the analysis of the results, this research developed guideline to enable professionals to determine the new source of index using a common guideline and help to create common understanding.
A Study on Improving Project Delivery Method Selection Criteria Practice on Ethiopian Road Authority
(Addis Ababa University, 2020-09-01) Edlawit Teka; Wubishet Jekale (PhD)
Construction industry in Ethiopia is one of the fast growing industries with significant share in the GDP. It has an important contribution to the economy which involves various infrastructure developments. One of the major infrastructure elements is the road sector. Ethiopian Road authority has a long history in providing road infrastructure primarily in the country. A project delivery method (PDM) is a framework that determines the relationship and responsibilities of client, contractor and consultant. The decision to select delivery method should be based on a systematic approach that includes all available PDMs. The project under the Ethiopian Roads Authority ERA, continue to face great challenges when it comes to delivering projects by selecting the most appropriate DM for its projects. The general practice in this institution is largely depends on culture of the ERA board’ reliance on their familiarity and experience with a particular method. With this background, this study provides a comprehensive solution for this challenges of ERA. 27 criterions under four group of delivery method selection criteria are identified in this research effort. The criteria are identified through questionnaire survey from client, consultant and contractor perspectives. The result is analysed using Relative Importance Index(RII). Project actual challenges are thoroughly discussed based on 22 selected case study projects that are completed under RSDP IV and RSDP V. The analysis clarifies main challenges of ERA’s projects. The major challenges identified are: Right of way, variation orders, scope change, design change and adverse weather conditions. A sufficient set of critical issues are defined in this study and advantages/disadvantages of each delivery method is thoroughly studied with respect to the issues concentrating on the effects of PDM option on the project challenges. The study covers both the available PDMs (i.e. Design-Bid-Build (DBB), Design Build (DB). The model for selecting appropriate delivery method is developed using Multi-attribute decision tools to select a PDM in this research for case study projects. The model was verified using case study project. The model provides useful information and introduces the advantages and limitations of each PDM to the decision makers. an essential well-structured decision making process is embedded in the proposed framework of this study as a result of the analysis that is reliable and sufficient to solve the problem of selecting an appropriate PDM. Key word: - Delivery method selection criteria, project challenges, Multi Attribute Utility Theory
An Assessment on The Competitiveness of Indigenous Contractor’s In Road Construction Projects (The Case of Federal Roads)
(Addis Ababa University, 2020-12-01) Zemenu Mersha Mihret; Wubshet Jekale (PhD)
A competitive contractor is the guarantee of a project’s success with enough capacity and performance on the industry. Therefore, how to choose a competitive contractor is crucial for the clients in the sector. The Federal Democratic Republic of Ethiopia has given an emphasis on improving the quality and size of the road network and infrastructure. Concerning this, the Ethiopian Roads Authority (ERA) is one of the assigned institutions by the FDRE as an implementing agency to award and follow up the implementation of the federal road construction projects to be timely and cost-effective as well as to improve the road sector through competent indigenous contractors. However, different literatures and reports shows that the indigenous contractors are not competitive enough in ERA projects. Thus, the road sector of Ethiopia is being dependent on foreign contractors. Consequently, the country faced lack of foreign currency, lack of local job opportunities, lack of competitive local contractors, and the increment of construction cost & time and quality decrement. Therefore, the study assessed the extent of competitiveness and identified critical affecting factors. Finally, it indicates the improvement mechanisms of competitiveness for indigenous contractors which participate in ERA projects. To achieve this, the research used survey and case study research strategy with mixed approach analysis method. The source of data used for the analysis were collected from respondent documents through questionnaire survey and document review from G-1 contractor’s and ERA. Thus, 97 ICB during tender and 104 projects during actual implementation were used for analyzing the competitiveness extent of indigenous contractors. Therefore, the average competitiveness extent of indigenous contractors was 46.07% in terms of value of projects awarded whereas in terms of actual performance were 52.4%. To select the most critical indigenous contractor competitiveness affecting factors, 37 factors were identified. Among these, the identified and prioritized 12 factors are cash flow management, experience, annual turn over, shortage of finance, time planning & management, capacity of human resource, plant and equipment, price increment, crew productivity, project scope, inappropriate price offer and material availability. And also, to find competitiveness improvement mechanisms, 21 factors were identified. From these, the identified 9 improvement mechanisms are continuous capacity building, suitable government policy, efficient use of advance payment, adequate funding, utilizing foreign contractors’ best practice, competent project manager, well-defined work plan, utilizing latest technology and utilizing joint venture approach. The research further provides recommendations under what circumstances the competitiveness of indigenous contractor’s will be sustainably to Federal road construction projects. Keyword: Competitiveness, Indigenous Contractor’s, ERA, Road Construction
Assessment on Practice of Real Property Valuation for Collateral in Addis Ababa: in the Case of Two Selected Private Commercial Banks
(Addis Ababa University, 2023-08-01) Agernew Aseres Alene; Teshome Tefera (PhD)
The main aim of the study is to assess the existing practice of real property valuation for collateral in the case of commercial banks in Addis Ababa; and investigate if the practice is consistent among the banks and to check if the practices are compatible to the internationally accepted principles. In order to accomplish this objective, the real property valuation practice for collateral in banks was considered as a real-life context as existing phenomenon; thus, appropriate case study method is deployed to investigate the aforementioned valuation related matters in the selected banks in Addis Ababa. The case study method allowed the researcher to use a variety of data using multiple data collection mechanisms that facilitated the validation of data through triangulation. It also helped the researcher avoid bias and error of data. The study assessed the local and international guidelines related to real property valuation, manuals of selected banks and Ethiopian bankers association. And, it finally benchmarking practice of real property valuation on Ethiopian banks’ guidelines is done based on the findings. The study revealed that each bank has its own valuation manual and procedures to do valuation. The amount of loan given to borrowers is not based on the market value of the property. In addition, the value of a property estimated by the banks doesn’t predict the actual market price but on securing the bank from risk as much as possible to ensure the banks can get their money back in case of default. Thus, properties are compulsorily undervalued by the lending banks and restricts the borrowing potential of investors and firms. Almost all commercial banks employ cost method due to availability of relevant comparative cost data, the difficulty in updating rental rates of buildings, and lack of stability in the Ethiopian property market. The depreciated replacement cost method of building valuation and determination of land value of land use right are not also compatible to the generally accepted standards due absence of income and expense data of subject and comparable property. The study recommended the need to minimize variation of value; revisit the existing land property law; align the standards to the generally accepted practice; develop standardized valuation framework in banks, and it is also strongly recommended that valuators need to demonstrate appropriate academic/professional qualifications, and technical competence to improve the practice.. Key words: real property, collateral, basis of valuation, valuation methods, location value
Comparative Construction Cost Analysis of Selected Design -Bid-Build and Design -Build Road Projects in Ethiopia
(Addis Ababa University, 2020-11-01) Muluken Shibru; Solomon Sertse(PhD)
Design-bid-build (DBB) and Design-build (DB) are the two common Project Delivery Systems (PDSs) that have been used widely in the international and local construction industry. For DB projects, during tendering, unlike the DBB’s contractor, the responsive design-builder offers a lump-sum amount using incomplete detailed engineering design. Although the DB PDS provides better cost certainty, that certainty may come at a higher premium as compared to DBB. This is because the design-builder allocates a certain risk factor to compensate for the design risk as well as for the lack of information to estimate the work quantities. Previous studies have demonstrated the cost certainty in favor of DB projects than DBB; however, it lacks to examine the amount of risk that comes with cost certainty. To fill this gap, this research undertakes a cost comparison between road projects delivered through the DBB and DB PDS using their cost-per-kilometer. It involves seven road projects (three DBB and four DB projects) tendered by the Ethiopian Roads Authority (ERA) from 2009 to 2017. It used a holistic multiple-case study design, primary sources of data, and document analysis. After ensuring the similarity between the projects, the DB’s bill quantities for selected pay items were multiplied by the corresponding nearby and similar DBB’s bill item-unit rates. The first, second, third, and fourth case analysis shows that DB projects exhibit a higher cost-per-kilometer and they are found to be 12.7%, 17.1%, 11.6%, and 13.5% costly than DBB projects respectively. Therefore, DB PDS can increase the project cost on average by 13.7% than the DBB PDS. This is also expected from the theoretical justification that, due to the lack of detailed information, the design-builder can be argued to include higher markup for possible risks. As a result, unless the project has a high state of urgency, the DBB PDS is the better option than DB PDS from a static cost performance perspective for the ERA context.
Comparative Construction Cost analysis of Selected Design-Bid-Build and Design-Build Road Projects in Ethiopia
(Addis Ababa University, 2020-12-01) Muluken Shibru; Solomon Sertse (PhD)
Design-bid-build (DBB) and Design-build (DB) are the two common Project Delivery Systems (PDSs) that have been used widely in the international and local construction industry. For DB projects, during tendering, unlike the DBB’s contractor, the responsive design-builder offers a lump-sum amount using incomplete detailed engineering design. Although the DB PDS provides better cost certainty, that certainty may come at a higher premium as compared to DBB. This is because the design-builder allocates a certain risk factor to compensate for the design risk as well as for the lack of information to estimate the work quantities. Previous studies have demonstrated the cost certainty in favor of DB projects than DBB; however, it lacks to examine the amount of risk that comes with cost certainty. To fill this gap, this research undertakes a cost comparison between road projects delivered through the DBB and DB PDS using their cost-per-kilometer. It involves seven road projects (three DBB and four DB projects) tendered by the Ethiopian Roads Authority (ERA) from 2009 to 2017. It used a holistic multiple-case study design, primary sources of data, and document analysis. After ensuring the similarity between the projects, the DB’s bill quantities for selected pay items were multiplied by the corresponding nearby and similar DBB’s bill item-unit rates. The first, second, third, and fourth case analysis shows that DB projects exhibit a higher cost-per-kilometer and they are found to be 12.7%, 17.1%, 11.6%, and 13.5% costly than DBB projects respectively. Therefore, DB PDS can increase the project cost on average by 13.7% than the DBB PDS. This is also expected from the theoretical justification that, due to the lack of detailed information, the design-builder can be argued to include higher markup for possible risks. As a result, unless the project has a high state of urgency, the DBB PDS is the better option than DB PDS from a static cost performance perspective for the ERA context. Keywords: Comparative Cost Analysis, Design-bid-build, Design-build, Road Project Costs, ERA, Case Study Page iv Muluken Shibru, EiABC-AAU, M.Sc. in Construction Manag
Design Management Practices in Building Design Process in the Case of Ethiopian Construction Consultant and Design Engineers
(Addis Ababa University, 2022-08-01) Samson Melesse Mamo; Tadesse Ayalew (PhD)
In recent times, the construction industry has been under pressure to improve efficiency in terms of quality improvement, timely delivery, and maintaining budget costs. The need for quality design solutions and effective processes has also incited significant emphasis in the industry. This study aimed to assess the design management practice in the building design process for Ethiopian construction consultants and design engineers in Addis Ababa. Accordingly, the study employed a quantitative research design. The study mainly used primary sources of data to collect the necessary information. It used three data collection methods, namely a questionnaire, an interview, and a document review. By employing descriptive statistics, this study found that challenges of design management practice included a lack of a structured and explicit design process and design information production and flow, as well as unimproved design planning, lack of design management tools and techniques and implementation by an inexperienced team. It mostly exhibited unsatisfactory level of design management disciplines, and various barriers included tools poorly deployed into industry practice, deficient resources in quality or quantity, and the inability to have a design checking system. There are also difficulties areas in terms of improvement needs on better managing design process include of having adequate design time increasing specialized design professions, to recognize design is as a process. Thus, the study concluded that these organizations created a low-level design management practice definition that involves setting high-level project milestones or gateways that the team can work towards. Accordingly, this study suggests that organizations must be cultured about the importance of the design process in delivering value to the whole project, how the way they work affects the design process, how they can contribute to the design and consequentially the whole project process. Therefore, implementation of a design management tool or practice must include and educate at all levels within an organizations and project team to ensure it is taken up in practice. Keyword: Design, Management, Practice, Challenges, Issues, Improve efficiency, Timely delivery
Developing BIM-Enabled Built Asset Facility Information Management System: A Case of Public Universities In Addis Ababa
(Addis Ababa University, 2022-06-01) Tamiru Mengst Habtu; Asregedew Kassa Woldesenbet (PhD)
Facilities management (FM) is a discipline comprising various processes, activities and maintenance services to support the main functions of built asset facilities. It demands sets of comprehensive information. Lack of information is one of the major challenges in the O & M phase of the built asset. The emergence of Building Information Modelling (BIM) systems, helped to solve the issue and improve the efficiency of built asset facilities management. Currently, the public universities have no data/information and related documents on the built asset facilities. The built asset facilities information management system is conventional and has a major difficulty. Therefore, it is necessary to study BIM Enabled Built Asset Facility Information Management System. This study aims to explore the current practice of built asset facility information management systems in public universities and identify the required information for BIM-enabled built asset management. The importance of identifying the required information is to facilitate the FM decision-making process. Finally, this study aims to develop the conceptual framework of a BIM-enabled built asset facilities information management system. The study adopted both descriptive and exploratory types of research. A multiple-case study was conducted on the three public universities in Addis Ababa. Data collection and analysis were based on an extensive literature review of similar studies followed by a semi structured interview, document analysis, and observation. The study adopted both quantitative and qualitative methods. All interview, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The study findings indicated that the FM office in public universities didn’t have the data or information of the old built asset facilities but to some extent, they have as-built drawings for recently completed projects. So, the lack of information has an impact on the time and the cost of the O & M process of the built asset. The FM office practiced the conventional method to capture, visualize, transfer and manage the built asset information. Currently, all the basic, technical, managerial, commercial, financial, and legal information are extremely relevant for built asset management in the selected public universities. Accordingly, to manage the built asset information, the FM office in public universities needs a single platform. As a result, a BIM-enabled FM conceptual framework was proposed. Finally, the future study should further develop the proposed framework and adopt it in public universities. Keywords: FM, Built asset, BIM, BIM-FM Integration, Information requirement, information management system, Asset Information Modeling (AIM).
Developing BIM-Enabled Built Asset Facility Information Management System: A Case of Public Universities in Addis Ababa
(Addis Ababa University, 2022-06-01) Tamiru Mengst Habtu; Asregedew Kassa Woldesenbet (PhD)
Facilities management (FM) is a discipline comprising various processes, activities and maintenance services to support the main functions of built asset facilities. It demands sets of comprehensive information. Lack of information is one of the major challenges in the O & M phase of the built asset. The emergence of Building Information Modelling (BIM) systems, helped to solve the issue and improve the efficiency of built asset facilities management. Currently, the public universities have no data/information and related documents on the built asset facilities. The built asset facilities information management system is conventional and has a major difficulty. Therefore, it is necessary to study BIM-Enabled Built Asset Facility Information Management System. This study aims to explore the current practice of built asset facility information management systems in public universities and identify the required information for BIM-enabled built asset management. The importance of identifying the required information is to facilitate the FM decision-making process. Finally, this study aims to develop the conceptual framework of a BIM-enabled built asset facilities information management system. The study adopted both descriptive and exploratory types of research. A multiple-case study was conducted on the three public universities in Addis Ababa. Data collection and analysis were based on an extensive literature review of similar studies followed by a semi-structured interview, document analysis, and observation. The study adopted both quantitative and qualitative methods. All interview, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The study findings indicated that the FM office in public universities didn’t have the data or information of the old built asset facilities but to some extent, they have as-built drawings for recently completed projects. So, the lack of information has an impact on the time and the cost of the O & M process of the built asset. The FM office practiced the conventional method to capture, visualize, transfer and manage the built asset information. Currently, all the basic, technical, managerial, commercial, financial, and legal information are extremely relevant for built asset management in the selected public universities. Accordingly, to manage the built asset information, the FM office in public universities needs a single platform. As a result, a BIM-enabled FM conceptual framework was proposed. Finally, the future study should further develop the proposed framework and adopt it in public universities. Keywords: FM, Built asset, BIM, BIM-FM Integration, Information requirement, information management system, Asset Information Modeling (AIM).
Developing Bim-Enabled Built Asset Facility Information Management System: A Case of Public Universities In Addis Ababa
(Addis Ababa University, 2022-06-01) Tamiru Mengst Habtu; Asregedew Kassa Woldesenbet (PhD)
Facilities management (FM) is a discipline comprising various processes, activities and maintenance services to support the main functions of built asset facilities. It demands sets of comprehensive information. Lack of information is one of the major challenges in the O & M phase of the built asset. The emergence of Building Information Modelling (BIM) systems, helped to solve the issue and improve the efficiency of built asset facilities management. Currently, the public universities have no data/information and related documents on the built asset facilities. The built asset facilities information management system is conventional and has a major difficulty. Therefore, it is necessary to study BIM Enabled Built Asset Facility Information Management System. This study aims to explore the current practice of built asset facility information management systems in public universities and identify the required information for BIM-enabled built asset management. The importance of identifying the required information is to facilitate the FM decision-making process. Finally, this study aims to develop the conceptual framework of a BIM-enabled built asset facilities information management system. The study adopted both descriptive and exploratory types of research. A multiple-case study was conducted on the three public universities in Addis Ababa. Data collection and analysis were based on an extensive literature review of similar studies followed by a semi structured interview, document analysis, and observation. The study adopted both quantitative and qualitative methods. All interview, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The study findings indicated that the FM office in public universities didn’t have the data or information of the old built asset facilities but to some extent, they have as-built drawings for recently completed projects. So, the lack of information has an impact on the time and the cost of the O & M process of the built asset. The FM office practiced the conventional method to capture, visualize, transfer and manage the built asset information. Currently, all the basic, technical, managerial, commercial, financial, and legal information are extremely relevant for built asset management in the selected public universities. Accordingly, to manage the built asset information, the FM office in public universities needs a single platform. As a result, a BIM-enabled FM conceptual framework was proposed. Finally, the future study should further develop the proposed framework and adopt it in public universities. Keywords: FM, Built asset, BIM, BIM-FM Integration, Information requirement, information management system, Asset Information Modeling (AIM).
Developing Built-Asset Maintenance Maturity Rating Model for Public University Buildings in Ethiopia
(Addis Ababa University, 2022-06-01) Zewdu Seblework Tafesse; Asregedew Kassa Woldesenbet ( PhD)
In Ethiopia, a significant amount of funds is invested in mega projects like dams, highways, railways, airports, power plants, public buildings, etc. These investments are showing unprecedented expansion which, by some estimates, has shown a 9-fold growth of the GDP of the construction sector. However, once these projects, be it mega or otherwise, are completed and ownership is transferred, the post-construction phase of asset management is noticeably neglected, if not ignored totally. And this national reality is witnessed in the building facilities of public universities in the country. In this research paper, a modest attempt is made to examine the building maintenance practice of the nation, factors affecting proper maintenance management, and challenges faced. A thorough investigation of the current situation of building facilities of public universities in Addis Ababa is made. Along with that significant focus is made to develop a viable maturity rating model for building maintenance management of public universities in Ethiopia. A multi-case study was conducted on the three public universities in Addis Ababa. The research approach of this study is both deductive and inductive research. Both quantitative and qualitative data are collected from primary and secondary data sources by document analysis, observation, and semi-structured interviews of the FM office and project office representatives of each public university. All the semi-structured interviews, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The three main objectives of this study are effectively addressed. When it comes to identifying factors that influence the proper practice of building maintenance management in public universities in Ethiopia, the main factors were grouped under seven categories and five critical factors. Finally, a built asset maturity rating model is proposed based on the weights calculated by DEMATEL, MCDM analysis weights that can be used as a self-assessment tool by public universities in Ethiopia. Keywords: Facility Management, Built Asset, Maintenance, Maturity Rating Model, DEMATEL
Developing Built-Asset Maintenance Maturity Rating Model for Public University Buildings In Ethiopia
(Addis Ababa University, 2022-06-01) Zewdu Seblework Tafesse; Tadesse Ayalew (PhD)
In Ethiopia, a significant amount of funds is invested in mega projects like dams, highways, railways, airports, power plants, public buildings, etc. These investments are showing unprecedented expansion which, by some estimates, has shown a 9-fold growth of the GDP of the construction sector. However, once these projects, be it mega or otherwise, are completed and ownership is transferred, the post-construction phase of asset management is noticeably neglected, if not ignored totally. And this national reality is witnessed in the building facilities of public universities in the country. In this research paper, a modest attempt is made to examine the building maintenance practice of the nation, factors affecting proper maintenance management, and challenges faced. A thorough investigation of the current situation of building facilities of public universities in Addis Ababa is made. Along with that significant focus is made to develop a viable maturity rating model for building maintenance management of public universities in Ethiopia. A multi-case study was conducted on the three public universities in Addis Ababa. The research approach of this study is both deductive and inductive research. Both quantitative and qualitative data are collected from primary and secondary data sources by document analysis, observation, and semi-structured interviews of the FM office and project office representatives of each public university. All the semi-structured interviews, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The three main objectives of this study are effectively addressed. When it comes to identifying factors that influence the proper practice of building maintenance management in public universities in Ethiopia, the main factors were grouped under seven categories and five critical factors. Finally, a built asset maturity rating model is proposed based on the weights calculated by DEMATEL, MCDM analysis weights that can be used as a self-assessment tool by public universities in Ethiopia. Keywords: Facility Management, Built Asset, Maintenance, Maturity Rating Model, DEMATEL
Developing Built-Asset Maintenance Maturity Rating Model for Public University Buildings in Ethiopia
(Addis Ababa University, 2022-06-01) Zewdu Seblework Tafesse; Asregedew Kassa Woldesenbet( PhD)
In Ethiopia, a significant amount of funds is invested in mega projects like dams, highways, railways, airports, power plants, public buildings, etc. These investments are showing unprecedented expansion which, by some estimates, has shown a 9-fold growth of the GDP of the construction sector. However, once these projects, be it mega or otherwise, are completed and ownership is transferred, the post-construction phase of asset management is noticeably neglected, if not ignored totally. And this national reality is witnessed in the building facilities of public universities in the country. In this research paper, a modest attempt is made to examine the building maintenance practice of the nation, factors affecting proper maintenance management, and challenges faced. A thorough investigation of the current situation of building facilities of public universities in Addis Ababa is made. Along with that significant focus is made to develop a viable maturity rating model for building maintenance management of public universities in Ethiopia. A multi-case study was conducted on the three public universities in Addis Ababa. The research approach of this study is both deductive and inductive research. Both quantitative and qualitative data are collected from primary and secondary data sources by document analysis, observation, and semi-structured interviews of the FM office and project office representatives of each public university. All the semi-structured interviews, document analysis, and observation data were analyzed using the thematic and statistical analysis method. The three main objectives of this study are effectively addressed. When it comes to identifying factors that influence the proper practice of building maintenance management in public universities in Ethiopia, the main factors were grouped under seven categories and five critical factors. Finally, a built asset maturity rating model is proposed based on the weights calculated by DEMATEL, MCDM analysis weights that can be used as a self-assessment tool by public universities in Ethiopia. Keywords: Facility Management, Built Asset, Maintenance, Maturity Rating Model, DEMATEL
Industrialized Building System for Provision of Mass Houses: Critical Success Factors and Potential Advantages In the Case of Precast Concrete System In Addis Ababa
(Addis Ababa University, 2022-06-01) Henok Sime; Denamo AddissieI (PhD)
Industrialized Building System is defined as a construction method and development approach in which components are fabricated on or off site, transported, and assembled with minimal additional work on site. Industrialized Building System (IBS) is an engineering innovation to prevent most compelling impediments of ordinary strategies of development in order to boost project performance. The system has a significant potential that can be harnessed if utilized for projects like mass housing. An in-depth understanding of IBS and investigating those success factors is inevitably very important prior to adopting IBS technique as a construction technique Addis Ababa where delivering housing is one of the most critical performances challenges for city administration and one of the top priorities for the city residents. Responding to the challenge and in recognition to the potential advantages of IBS construction technique, the research presents ranked list of potential advantages of IBS construction technique and prioritized rank of critical success factors that affect a successful implementation for mass housing project in terms of their influence on implementation. The first phase of the research cover an in-depth and systematic review of literature resources that produce 8 critical success factors that directly influences implementation and further expanded into 31 sub-factors, further 5 potential advantages of IBS were identified.Survey research methodology used in second phase of the research where questionnaires and interview survey study is carried out and Analytic Hierarchy Process analysis method is used to prioritize identified critical success factors. The finding rank cost factors first as the most critical factor for IBS implementation followed by knowledge and skill factors. Government policies and regulations factors ranked third, technology factor fourth, supply chain and market factor ranked fifth and management factors at sixth. Production and logistics factors ranked seventh and an integration factor is ranked eighth. Whereas cost efficiency and speed of construction ranked first and second, reduction of waste and quality ranked third and fourth were as construction safety ranked fifth as a potential advantage of IBS. In line with the findings the research recommends the housing construction industry change its conventional on-site approach to IBS construction method, and for a successful implementation respective stakeholders need to play more roles unlocking the critical success factors such as financial incentives, knowledge and skill development and setting regulation and standard to streamline the IBS implementation in housing project life cycle. KEY WORDS: Industrialized Building System, Critical Success Factor, Precast Concrete, Mass Housing
Innovative Tendering Practice: E - Tendering Applicability for the Procurement of Ethiopian Federal Road Construction Projects
(Addis Ababa University, 2021-08-01) Hilina Belachew Demisse; Denamo Addissie (PhD)
Construction procurement is considered to be one of the most critical stages throughout the lifecycle of construction projects. However, bidding practice which is one of the steps in procurement is identified as one of the major shortcomings of the Ethiopian construction industry. The fact that the current Ethiopian construction tendering practice is paper-based has several drawbacks like human errors in document production, poor audit trail, access problems, security concerns, insufficient copies, and time-consuming being the major ones. This paper analyses the current practice of paper-based tendering in road construction projects along with its challenges & how it can be improved via e- tendering implementation. To answer these questions, the perception & experience of tendering professionals involved in the road construction projects was assessed via a questionnaire & interview survey. Few e-tendering practitioners were also interviewed about their experience while implementing the system. Accordingly, the result showed that e-tendering was perceived to be advantageous and would improve the time, cost, communication, documentation, tender evaluation, resource consumption, and transparency of the tendering process. However, the result also revealed many factors related to management, organization, environment, & technology that may hinder the implementation of the system. Thus, due to the potential benefits of e-tendering highlighted in this paper, it requires more attention from the government & the procuring entities for its greater expansion & adoption to ultimately contribute to the growth of the country‟s economy. Accordingly, findings from the literature review, survey, and document review were finally incorporated in the conceptual framework developed for e-tendering implementation in the study area. The framework was validated using a focus group discussion & a semi- structured interview with tendering professionals engaged in the study area and amendments were made accordingly. Its clarity, comprehensiveness, relevance, simplicity, & future applicability was also assured via the questionnaires developed.
Investigating the Effect of Currency Devaluation on Contractors: A Case Study on Selected Public Building Projects
(Addis Ababa University, 2022-05-01) Haimanot Nibret Mengistu; Wubishet Jekale (PhD)
The National Bank of Ethiopia devalued Birr by 15% against United States Dollar (USD) in October 2017. Since then, the construction industry in Ethiopia has faced price volatility on construction materials. According to prior studies, the construction industry is influenced by currency devaluation, resulting in high inflation, volatile market pricing, and material shortages. This price increase causes contractors to fail in finishing their projects within the acceptable time and quality boundaries, as well as within the anticipated cost boundary. This delays their progress in every way. However, the extent of the impact on construction projects is not well-understood and needs to be studied more closely. Therefore, the main objective of this study is to investigate the effect of currency devaluation on contractors. In particular, this paper aims to determine the effect of currency devaluation on public building projects that were commenced before currency devaluation occurred. It also focuses on contributory trade of works induced by currency devaluation and minimizing the risk of economic loss in construction projects due to currency devaluation for current and future occurrences. Based on a review of literature on the effect of currency devaluation on the Ethiopian construction sector and other countries' currency devaluation issues and measures, a case study research technique was utilized. Secondary data was obtained through document review. Analysis of data demonstrated the impact of the construction project, contributory trade, and strategies that the government should enforce to minimize the risk of devaluation on contractors. The result reviled that the construction cost of four public building projects in Addis Ababa increased by 18.12%, 17.72%, 16.51% and 13.94% because of the price escalation of construction materials tied to the currency devaluation of the Birr. Further, reinforced concrete work, wall and floor finishing work were found contributory to currency devaluation. The study concludes that compensating contractors who work for government projects and were adversely affected by the recent economic legislation adopted by the Government during 2017 to tackle the current crisis and adjusting the value of most contributory trade of works induced by currency devaluation to be increased or decreased based on an index minimizes the risk resulting from currency fluctuation for the future occurrence. On this basis, the government of Ethiopia should pass decisions that allow contracts to be increased or decreased, based on a price index. Keywords: Currency Devaluation, Construction Materials, Construction Industry
Investigating the Effect of Currency Devaluation on Contractors: A Case Study on Selected Public Building Projects
(Addis Ababa University, 2022-05-01) Haimanot Nibret Mengistu; Wubishet Jekale (PhD)
The National Bank of Ethiopia devalued Birr by 15% against United States Dollar (USD) in October 2017. Since then, the construction industry in Ethiopia has faced price volatility on construction materials. According to prior studies, the construction industry is influenced by currency devaluation, resulting in high inflation, volatile market pricing, and material shortages. This price increase causes contractors to fail in finishing their projects within the acceptable time and quality boundaries, as well as within the anticipated cost boundary. This delays their progress in every way. However, the extent of the impact on construction projects is not well-understood and needs to be studied more closely. Therefore, the main objective of this study is to investigate the effect of currency devaluation on contractors. In particular, this paper aims to determine the effect of currency devaluation on public building projects that were commenced before currency devaluation occurred. It also focuses on contributory trade of works induced by currency devaluation and minimizing the risk of economic loss in construction projects due to currency devaluation for current and future occurrences. Based on a review of literature on the effect of currency devaluation on the Ethiopian construction sector and other countries' currency devaluation issues and measures, a case study research technique was utilized. Secondary data was obtained through document review. Analysis of data demonstrated the impact of the construction project, contributory trade, and strategies that the government should enforce to minimize the risk of devaluation on contractors. The result reviled that the construction cost of four public building projects in Addis Ababa increased by 18.12%, 17.72%, 16.51% and 13.94% because of the price escalation of construction materials tied to the currency devaluation of the Birr. Further, reinforced concrete work, wall and floor finishing work were found contributory to currency devaluation. The study concludes that compensating contractors who work for government projects and were adversely affected by the recent economic legislation adopted by the Government during 2017 to tackle the current crisis and adjusting the value of most contributory trade of works induced by currency devaluation to be increased or decreased based on an index minimizes the risk resulting from currency fluctuation for the future occurrence. On this basis, the government of Ethiopia should pass decisions that allow contracts to be increased or decreased, based on a price index. Keywords: Currency Devaluation, Construction Materials, Construction Industry

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